Purification equipment for low-quality brine
By combining equipment with heating furnace, sealed high-pressure heating barrel, negative-pressure sealed barrel and steam condensation mechanism, the problems of high heat energy consumption and waste of resources in the purification of low-quality brine are solved, and efficient brine purification and water vapor are realized.
Patent Information
- Application Number
- CN202422366480.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-27
- Publication Date
- 2025-08-12
- Estimated Expiration
- 2034-09-27
AI Technical Summary
The prior art consumes too much heat energy during the purification of low-quality brine, and evaporates water wastes resources, making the purification efficiency low.
The combined equipment of a heating furnace, a sealed high-pressure heating barrel, a negative pressure sealed barrel, a low-pressure flash evaporation mechanism and a steam condensation mechanism is adopted to precipitate the salt and non-volatile substances in the brine under a negative pressure environment after heating and pressure-raising, and the condensed water vapor is recovered.
It reduces the heat energy consumption during brine purification, improves purification efficiency, and realizes the resource recycling of water vapor.
Smart Images
Figure CN223213865U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of brine treatment, in particular to a device for purifying low-quality brine. Background Art
[0002] In the chemical, pharmaceutical, and food industries, brine is one of the important raw materials. Purified brine can be used to produce higher-quality products, such as sodium chloride, bromine, iodine, and potassium salts. Brine may contain a variety of impurities, such as sediment, suspended matter, organic matter, microorganisms, and heavy metal ions. These impurities will affect the quality of the brine. Purification can remove these impurities and produce purer brine. Furthermore, through purification, valuable components can be extracted from low-quality brine, maximizing resource utilization and reducing resource waste. When purifying low-quality brine, it is necessary to heat the low-quality brine to allow the crystals and non-volatile substances inside to precipitate and the water to evaporate.
[0003] The information disclosed in this background technology section is only intended to enhance understanding of the overall background of the invention and should not be regarded as an admission or any form of suggestion that the information constitutes the prior art already known to a person skilled in the art.
[0004] Although the existing technology has solved certain problems, it still has the following disadvantages:
[0005] When purifying low-quality brine with existing technology, it is necessary to continuously heat the brine to evaporate water to precipitate crystals, which consumes a lot of heat and energy, and the evaporated water is released into the atmosphere, wasting resources. The efficiency of crystal precipitation in brine relying solely on heating is too low. Utility Model Content
[0006] The purpose of the utility model is to provide a purification device for low-quality brine.
[0007] In order to achieve the above objectives, the present invention is implemented through the following technical solutions:
[0008] A low-quality brine purification device, comprising:
[0009] A heating furnace, wherein a sealed high-pressure heating barrel is provided at the upper end of the heating furnace, a feed pipe is fixedly connected to the upper end of the sealed high-pressure heating barrel, a brine storage box is provided at the rear side of the heating furnace, and a feed delivery pump is provided on the feed pipe;
[0010] A negative pressure sealed barrel is arranged in front of the heating furnace, and the negative pressure sealed barrel and the sealed high-pressure heating barrel are connected by a feed delivery pipe, a first control valve is provided on the feed delivery pipe, and a feed pressure pump is provided on the feed delivery pipe;
[0011] A support frame is provided on the base of the negative pressure sealed barrel, the foot support rods at the four corners of the support frame are fixedly connected to the upper side of the base of the negative pressure sealed barrel, a filter separation box is provided in front of the negative pressure sealed barrel, and a discharge conveying pipe is fixedly connected to the lower end of the front side of the negative pressure sealed barrel;
[0012] A low-pressure flash evaporation mechanism is provided between the support frame and the negative pressure sealing barrel, and includes an electric push rod, a piston and a sealing sleeve. The electric push rod is fixedly connected to the upper end of the inner part of the support frame, the piston is fixedly connected to the telescopic rod at the lower end of the electric push rod, and the sealing sleeve is fixedly connected to the upper end of the outer part of the negative pressure sealing barrel. The piston is in sealing contact with the inner wall of the sealing sleeve;
[0013] A steam condensing mechanism, the steam condensing mechanism being arranged on the front side of the sealing sleeve;
[0014] A glass tube is arranged in front of the discharge conveying pipe, a second control valve is fixedly connected to the front side of the discharge conveying pipe, and a rear end of the glass tube is fixedly connected to the front end of the second control valve.
[0015] Furthermore, the interior of the brine storage box and the interior of the sealed high-pressure heating barrel are connected through a feed pipe, and the interior of the sealing sleeve and the interior of the negative pressure sealing barrel are connected through a feed pipe.
[0016] Furthermore, the first control valve is located behind the feed pressure pump, and the interior of the negative pressure sealing barrel and the interior of the sealed high-pressure heating barrel are connected through a feed delivery pipe.
[0017] Furthermore, the glass tube is made of aluminosilicate glass, the front end of the glass tube is fixedly connected to the rear side of the filtration separation box, and a filtration adsorption separation layer is provided on the front side of the interior of the filtration separation box.
[0018] Furthermore, the steam condensation mechanism includes:
[0019] A steam delivery elbow, the steam delivery elbow being fixedly connected to the upper end of the front side of the outer side of the sealing sleeve;
[0020] The spiral condensation double-layer tube is arranged at the front end of one side outside the negative pressure sealing barrel, and the upper end of the spiral condensation double-layer tube is fixedly connected to the other end of the steam delivery elbow connection sealing sleeve.
[0021] Furthermore, the inner layer of the spiral condensation double-layer tube transports steam, and the outer layer transports condensed water. The upper and lower front ends of the outer sides of the spiral condensation double-layer tube are fixedly connected with a condensed water outlet joint and a condensed water inlet joint respectively. The condensed water outlet joint and the condensed water inlet joint are both through-connected to the outer layer of the spiral condensation double-layer tube.
[0022] Furthermore, when the negative pressure sealed barrel conveys gas, the piston is located above the steam conveying elbow, and when the negative pressure sealed barrel conveys solid and liquid, the piston is located below the steam conveying elbow. The interior of the sealing sleeve and the inner layer of the spiral condensation double-layer tube are connected through the interior of the steam conveying elbow.
[0023] The utility model provides a low-quality brine purification device with the following beneficial effects:
[0024] The low-quality brine is first heated in a heating furnace and pressurized inside a sealed high-pressure heating barrel to increase the dissolution of crystals and other substances in the low-quality brine. The brine is then transported to a negative pressure sealed barrel. The piston moves upward rapidly to reduce the air pressure inside the negative pressure sealed barrel, increase the pressure difference of the brine, and precipitate the salt and non-volatile substances in the brine. The evaporated water vapor is transported out from the inside of the sealed sleeve for condensation, thereby reducing the unit heat energy consumed in brine purification and increasing the purification efficiency. BRIEF DESCRIPTION OF THE DRAWINGS
[0025] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for the embodiments or the description of the prior art. Obviously, the drawings described below are only exemplary, and those skilled in the art can also derive other implementation drawings based on the provided drawings without inventive effort.
[0026] Figure 1 This utility model is a three-dimensional low-quality brine purification equipment Figure 1 .
[0027] Figure 2 This utility model is a three-dimensional low-quality brine purification equipment Figure 2 .
[0028] Figure 3 This utility model is a three-dimensional low-quality brine purification equipment Figure 3 .
[0029] Figure 4 It is a partial structural stereogram of a low-quality brine purification device of the utility model.
[0030] Markings in the figure: 1. Heating furnace; 2. Negative pressure sealing barrel; 3. Support frame; 4. Low-pressure flash evaporation mechanism; 401. Electric push rod; 402. Piston; 403. Sealing sleeve; 5. Steam condensation mechanism; 501. Steam conveying elbow; 502. Spiral condensation double-layer tube; 6. Glass tube; 7. Sealed high-pressure heating barrel; 8. Feed pipe; 9. Brine storage box; 10. Feed pump; 11. Feed pipe; 12. First control valve; 13. Feed pressure pump; 14. Filtration and separation box; 15. Discharge pipe; 16. Second control valve; 17. Filtration and adsorption separation layer; 18. Condensate outlet joint; 19. Condensate inlet joint. DETAILED DESCRIPTION
[0031] Exemplary embodiments will be described in detail herein, examples of which are illustrated in the accompanying drawings. In the following description, when referring to the drawings, identical numerals in different figures represent identical or similar elements unless otherwise indicated. The embodiments described in the following exemplary embodiments are not intended to represent all embodiments consistent with the present disclosure. Rather, they are merely examples of devices consistent with certain aspects of the present disclosure, as detailed in the appended claims.
[0032] The following is a clear and complete description of the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.
[0033] Example 1:
[0034] like Figures 1 to 4 As shown, this embodiment proposes a purification equipment for low-quality brine, including a heating furnace 1, a negative pressure sealed barrel 2, a support frame 3, a low-pressure flash evaporation mechanism 4, a steam condensation mechanism 5, a glass tube 6, a sealed high-pressure heating barrel 7, a feed pipe 8, a brine storage box 9 and a filtering and separation box 14 arranged in front of the negative pressure sealed barrel 2.
[0035] Among them, the brine storage box 9 is used to store high-salt brine with more impurities that need to be treated. A heating furnace 1 is set in front of the brine storage box 9. A sealed high-pressure heating barrel 7 is installed on the upper side of the heating furnace 1. A feed pipe 8 is fixedly connected to the upper end of the sealed high-pressure heating barrel 7. The rear end of the feed pipe 8 is inserted into the interior of the brine storage box 9, and a feed delivery pump 10 is set on the feed pipe 8. The front end of the feed pipe 8 extends to the interior of the sealed high-pressure heating barrel 7. The brine to be treated is pumped into the sealed high-pressure heating barrel through the feed delivery pump 10. The interior of 7 is heated by the heating furnace 1 and the pressure inside the sealed high-pressure heating barrel 7 is gradually increased to increase the dissolution rate of some soluble substances in the brine. A feed conveying pipe 11 is fixedly connected to the lower end of the front side of the sealed high-pressure heating barrel 7. A first control valve 12 and a feed pressure pump 13 are set on the feed conveying pipe 11. The feed pressure pump 13 is in front of the first control valve 12. The opening and closing of the feed conveying pipe 11 are controlled by the first control valve 12. The feed pressure pump 13 is used to ensure the stability of the forward transportation of the brine inside the sealed high-pressure heating barrel 7.
[0036] A negative pressure sealed barrel 2 is arranged in front of the heating furnace 1. The negative pressure sealed barrel 2 is a horizontal sealed barrel. The front end of the feed conveying pipe 11 is fixedly connected to the lower end of the outer rear side of the negative pressure sealed barrel 2. The brine inside the sealed high-pressure heating barrel 7 is conveyed into the interior of the negative pressure sealed barrel 2 through the feed conveying pipe 11. A vertical sealing sleeve 403 is fixedly connected to the upper end of the outer side of the negative pressure sealed barrel 2. A support frame 3 is arranged above the negative pressure sealed barrel 2. The support frame 3 is fixedly connected to the upper end of the base of the negative pressure sealed barrel 2 through four support rods at the lower end. An electric push rod 401 is fixedly connected to the upper end of the inner part of the support frame 3. The telescopic rod at the lower end of the electric push rod 401 is fixedly connected. A piston 402, the piston 402 and the inner wall of the sealing sleeve 403 fit tightly, and the piston 402 is driven to move up and down inside the sealing sleeve 403 by the contraction of the electric push rod 401 to adjust the pressure inside the negative pressure sealing barrel 2. The electric push rod 401 drives the piston 402 to rise, and the space of the combination of the negative pressure sealing barrel 2 and the sealing sleeve 403 becomes larger, and the air pressure is reduced. The pressure needs to be reduced to 0.1~0.3MPa, and the salt and other non-volatile components inside the brine are concentrated and can be precipitated. The heating furnace 1 is used to heat and pressurize the sealed high-pressure heating barrel 7. After the brine is transported to the inside of the negative pressure sealing barrel 2, the air pressure difference increases, and heating is used to assist and reduce the energy used.
[0037] At the upper end of the outer front side of the sealing sleeve 403, a steam delivery elbow 501 is fixedly connected to the interior of the sealing sleeve 403. The other end of the steam delivery elbow 501 connected to the sealing sleeve 403 is fixedly connected to a spiral spiral condensation double-layer tube 502. The spiral condensation double-layer tube 502 is divided into two layers, the inner layer is used to transport the low-pressure flash steam rising inside the negative pressure sealing barrel 2. When the low-pressure flash steam needs to be transported outward, the piston 402 is raised to the top of the sealing sleeve 403 connected to the steam delivery elbow 501, so that the sealing sleeve 403 and the inner of the steam delivery elbow 501 are The two parts are connected together, and under the pressure of the feed booster pump 13 on the feed delivery pipe 11, steam is transported from the inside of the negative pressure sealing barrel 2 to the inside of the sealing sleeve 403, and is transported to the inner layer of the spiral condensation double-layer tube 502 through the steam delivery elbow 501. A condensate delivery layer is set on the outer layer of the spiral condensation double-layer tube 502, and condensate is transported to the outer layer of the spiral condensation double-layer tube 502 through the condensate inlet joint 19 at the lower end, so that the flow direction of the condensate is opposite to the direction of steam delivery, so that the steam can be fully condensed, and the cooled and used condensate flows out from the condensate outlet joint 18 at the upper end of the outside of the spiral condensation double-layer tube 502.
[0038] A discharge conveying pipe 15 is fixedly connected to the lower end of the front side of the negative pressure sealing barrel 2, and a second control valve 16 is fixedly connected to the front end of the discharge conveying pipe 15. The discharge conveying pipe 15 is controlled by the second control valve 16. When low-pressure flash evaporation is performed, the second control valve 16 needs to be closed. After the gas separated by flash evaporation inside the negative pressure sealing barrel 2 is discharged, the second control valve 16 is opened, and the piston 402 is gradually moved downward to block the connection between the sealing sleeve 403 and the steam delivery elbow 501 again, so that the sealing sleeve 403 is blocked, and the second control valve 16 is opened. A glass tube is fixedly connected to the front end of the second control valve 16. 6. The glass tube 6 is made of aluminosilicate glass, which can withstand high temperatures and prevent high-pressure bursts. The glass tube 6 is convenient for observing the stratified components discharged from the inside of the negative pressure sealed barrel 2, and is convenient for observing and controlling the second control valve 16. A filter separation box 14 is set at the front end of the glass tube 6. A filter adsorption separation layer 17 is set at the front end of the inner part of the filter separation box 14. The activated carbon inside the interlayer is adsorbed and filtered on the filter screens on both sides. The filter screens filter the crystals and other solids discharged from the solid-liquid mixture discharged from the inside of the negative pressure sealed barrel 2, which is convenient for washing the filtered crystals. The remaining low-salt brine is discharged forward from the inside of the filter separation box 14.
[0039] The electrical components appearing in this article are all connected to an external main controller and 220V AC power, and the main controller can be a conventional known device that controls a computer, etc. The specific implementation method of this disclosure omits the detailed description of known functions and known components. To ensure the compatibility of the equipment, the operating methods used are consistent with the parameters of marketed equipment.
[0040] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. A low-quality brine purification device, characterized by: include: A heating furnace (1), wherein a sealed high-pressure heating barrel (7) is provided at the upper end of the heating furnace (1), a feed pipe (8) is fixedly connected to the upper end of the sealed high-pressure heating barrel (7), a brine storage box (9) is provided at the rear side of the heating furnace (1), and a feed delivery pump (10) is provided on the feed pipe (8); A negative pressure sealed barrel (2), the negative pressure sealed barrel (2) is arranged in front of the heating furnace (1), the negative pressure sealed barrel (2) and the sealed high-pressure heating barrel (7) are connected via a feed delivery pipe (11), a first control valve (12) is provided on the feed delivery pipe (11), and a feed pressure pump (13) is provided on the feed delivery pipe (11); A support frame (3), the support frame (3) is arranged on the base of the negative pressure sealed barrel (2), the foot support rods at the four corners of the support frame (3) are fixedly connected to the upper side of the base of the negative pressure sealed barrel (2), a filter separation box (14) is arranged in front of the negative pressure sealed barrel (2), and a discharge conveying pipe (15) is fixedly connected to the lower end of the front side of the negative pressure sealed barrel (2); A low-pressure flash evaporation mechanism (4), the low-pressure flash evaporation mechanism (4) is arranged between the support frame (3) and the negative pressure sealing barrel (2), the low-pressure flash evaporation mechanism (4) comprises an electric push rod (401), a piston (402) and a sealing sleeve (403), the electric push rod (401) is fixedly connected to the upper end of the inner part of the support frame (3), the piston (402) is fixedly connected to the telescopic rod at the lower end of the electric push rod (401), the sealing sleeve (403) is fixedly connected to the upper end of the outer part of the negative pressure sealing barrel (2), and the inner walls of the piston (402) and the sealing sleeve (403) are in sealing contact; A steam condensing mechanism (5), the steam condensing mechanism (5) being arranged on the front side of the sealing sleeve (403); A glass tube (6) is provided in front of a discharge conveying pipe (15); a second control valve (16) is fixedly connected to the front side of the discharge conveying pipe (15); and a rear end of the glass tube (6) is fixedly connected to the front end of the second control valve (16).
2. The low-quality brine purification device according to claim 1, characterized in that: The interior of the brine storage box (9) and the interior of the sealed high-pressure heating barrel (7) are connected through a feed pipe (8), and the interior of the sealing sleeve (403) and the interior of the negative pressure sealing barrel (2) are connected through.
3. The low-quality brine purification device according to claim 1, characterized in that: The first control valve (12) is located behind the feed pressure pump (13), and the interior of the negative pressure sealing barrel (2) and the interior of the sealed high-pressure heating barrel (7) are connected through the feed delivery pipe (11).
4. The low-quality brine purification device according to claim 1, characterized in that: The glass tube (6) is made of aluminosilicate glass, the front end of the glass tube (6) is fixedly connected to the rear side of the filter separation box (14), and a filter adsorption separation layer (17) is provided on the front side of the interior of the filter separation box (14).
5. The low-quality brine purification device according to claim 1, characterized in that: The steam condensing mechanism (5) comprises: A steam delivery elbow (501), wherein the steam delivery elbow (501) is fixedly connected to the upper end of the front side of the outer side of the sealing sleeve (403); The spiral condensation double-layer tube (502) is arranged at the front end of one side outside the negative pressure sealing barrel (2), and the upper end of the spiral condensation double-layer tube (502) is fixedly connected to the other end of the steam conveying elbow (501) connected to the sealing sleeve (403).
6. The low-quality brine purification device according to claim 5, characterized in that: The inner layer of the spiral condensation double-layer tube (502) transports steam, and the outer layer transports condensed water. The upper and lower front ends of the outer sides of the spiral condensation double-layer tube (502) are fixedly connected with a condensed water outlet joint (18) and a condensed water inlet joint (19), respectively. The condensed water outlet joint (18) and the condensed water inlet joint (19) are both connected to the outer layer of the spiral condensation double-layer tube (502).
7. The low-quality brine purification equipment according to claim 5, characterized in that: When the negative pressure sealed barrel (2) conveys gas, the piston (402) is located above the steam conveying elbow (501); when the negative pressure sealed barrel (2) conveys solids and liquids, the piston (402) is located below the steam conveying elbow (501); the interior of the sealing sleeve (403) and the inner layer of the spiral condensation double-layer tube (502) are connected through the interior of the steam conveying elbow (501).